STEM Connect Pro vs WinSend
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STEM Connect Pro
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This app is intended for use by STEM appointed technicians who have been trained on the use and maintenance of STEM devices. Via BLE technology (Bluetooth Low Energy), it is possible to connect to the products SHERPA and O3Z-Tech to update the last firmware version. This way STEM ensures maximum efficiency and reliability of its products thanks to the continuous upgrades by its internal R&D department. The update procedure is simple and assisted. This allows to the operator to upgrade the firmware in a simple way.
WinSend
Instantly share text and photos from your iPhone to your PC over Wi-Fi, similar to AirDrop. No cables, cloud, or account setup required. Trigger transfers with Shortcuts or Back Tap for seamless integration.
- Clipboard synchronization
- Fast photo transfer
- Wi-Fi direct sharing
- No account required
- Shortcuts and Back Tap integration
- Local network transfer
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AirDrop-like transfer for Windows. Quickly send text and photos from your iPhone to your PC — no cables. No account. No setup. Just install and start instantly. Trigger sync from anywhere using Shortcuts or Back Tap — no need to open the app. Key Features • Clipboard Sync Copy on iPhone, paste directly on Windows. • Fast Photo Transfer Send images instantly over local Wi-Fi. Your data stays on your network. • Cloud Clipboard Sync Sync your clipboard even on different networks — end-to-end encrypted, only your devices can read it. • Shortcuts & Back Tap Trigger sync without opening the app. One tap, done. How It Works Install WinSend on both iPhone and Windows Pair automatically and start using — photos transfer over local Wi-Fi, clipboard syncs anywhere with Cloud Sync Terms of Use： https://numerous-gecko-b97.notion.site/Terms-of-Use-2f73ad1d494580eb983de02c2827629f?source=copy_link Privacy Policy： https://www.notion.so/Privacy-Policy-2f73ad1d494580c58e7cf8269cbf6af7?source=copy_link
Screenshots
Verdict
The clearest difference is in-app purchases: STEM Connect Pro at none against WinSend's 3. STEM Connect Pro also leads on iOS requirement (13.0 vs 15.6). WinSend's advantage is update cadence (every 10 days vs every 14 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. WinSend sells 3 in-app purchases, starting at $0.99 per month. STEM Connect Pro asks for nothing beyond the download.
STEM Connect Pro ships an update every 14 months, WinSend every 10 days. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.
| Parameter | STEM Connect Pro | WinSend |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 14 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 9 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | STEM s.r.l. | 艳龙 陈 |
In-app purchases
STEM Connect Pro
No in-app purchases
WinSend
- Monthly Membership$0.991 Month
- Yearly Membership7 Days trial$6.991 Year
- Lifetime Membership$12.99
Questions
Is STEM Connect Pro free?
Is WinSend free?
Do STEM Connect Pro or WinSend have ads?
Which is updated more often, STEM Connect Pro or WinSend?
Other comparisons
